Demountable tire rim



Feb. 20, 1923. 1,445,926.

` J. W. AKARD.- DEMOUNTABLE TIRE RIM.

man funs 1s. 192|. 2 SHEETS-SHEET z.

27 Y 25 l I J9 J6 l, r/ {Y} x19 may"` Il Patented Feb. 20, 1923.

l meest DEMONTABLE Tren arr/i.

Application mea June 13, 1921; sel-iai No. frzviaii." f

T o au whom it may concern:

Be it known that I, loi-IN vlvl/'ILLiAw AKARD, al citizen of the UnitedStates, residing at Fair Play, in the county of Polk and State ofMissouri, have invented new and useful Improvements in Demountable yTireRims, of which the following is a specification. i The present inventionrelates to improvelU ments in demountable tire rims and has for itsobject the employing of aA shifting and locking' 'device whereby thevrim mayv be quickly attachedto or removed from the wheel without theuse of tools of any kind.

employing` of atoggle locking lever which is provided with means forsecurely holding the lever in an unobstructed position when the latteris not in operation.

y In the drawings L Fig. 1 is a side elevation yof a wheel embodying myimprovements and viewed from the outer side thereof; f

Fig. 2 is an enlarged fragmentary side elevation of the .lower portionof the wheel showing the lever tion'. l y

Fig. 3 is a horizontal sectional -view taken on the line 3-3 of Fig. 1;

Fig. 4 is a horizontal sectional view taken on the line 4-4 of Fig. 2; f

Fig. 5 is al transverse sectional viewtaken on the line 5-5 of Fig. 1;

Fig. 6 is a transverse sectional view taken on the line 6 6 ofFig. 2,showing the demountable rim being released from the wheel; v

Fig'. 7 is a fragmentary' perspective view disclosing more particularlythe operation of the locking ring. h y

Referring to the drawings, like nun'ierals representing like-.parts inthe corresponding gures, the wheel 10 is, provided with the usual spokes11 and fel-ly 12. To the outer side of the felly is attached'a shiftablering 13 having arranged therein a plurality of elon ated slots 14 andperipheral recesses 15. `complementary rim 16 having an upstandingflange 17 and a transverse portiony 18, one edge of which abuts againstthe inner face of the shiftable ring 13, is held in position by means ofthe bolts 19 which extend through the felly and slots 14 in the ring 13.The nuts 20, threaded v to the bolts 19, permit a 'rotative movement Afurther object of the invention is the in 1 the unlocked posi-` to 'beimparted to theV ring-when thelatter` is actuated byy means hereinafterdescribed. rlhe rim 211, which receives the; usual shoe 22, has arrangedon its inner' face a. plurality of spaced lugs 23', which .may`bee'i'tlier welded to oi-forined integral with theJ rim. rlhese lugsadjacent their forward. ends4 are beveled in two. directions," as,indica'tedat 24 y(Figs. 2, 6 and 7,) both transversely andcircumferentially` of" the' rim to gformf a wedge. The ring` 13 adjacenteach recess 1.5 is beveled on its inner face at 25 where it engages `thelbeveled faces of 'thejlugs 23 when the ring 13 is rotated inantivclockwise direction. 1 As' will -be 4observed from an'inspection of,F-ig.*7,the ring is beveled so that its ,width alongv its outer edge 25gradually decreases inqthe direction of the recesses 15, beginning ashort distance from each recess. ,y 0bviously, rotation oftheringinan-aii'ticlockwise direction causesthefbeveled faces 25 of thering to move across the beveled under faces 24 ofthe various lugs upon'V'the rim, and as the wider portionsof. the

ring approach the opposite sides of the lugs, it being noted that thelugs widen transversely as'viewed in Figures`2 vand.'F-,tliere will be atendency to expand the rim-and` i thus wedge` the same in position,attire same time takingupthe slackwhich may' have resulted from; wear onthe rim; By the same operation the ring ,will 'be `firmly locked in'position by theffwedginga'ctil'on,

- which will be assistedby` the shifting mechanism now -to-,beIdescribed. n .Y 1

In the d law'ingsthere is illustrateda preferred 4forni ofshifting'mechanisrn'i Vfor,the ringwhichconmprises a lever 26, fnlcrumedupon a stud 28 secured inthe fellyfo'tfthe wheel and extending'inwardlyina radiahdirection.I A" link.129Qis-fpv0tally.connected i atone end to a lugr 27 upon the lever, and atl its other end passesthrough alug 30 upon the ring 13. Atlone side of the lug 30 the link haspositioned thereon a nut 31which. abuts the lug, and at the oppositeside of the lug receives a spring 32held in position by a nut 33'threaded upon thev end of the, link. When thelever 26 is moved to theposition shown inFigures land thev ring has been shifted so that ltheylugs 23 are moved out of registry with Ithe recesses 15. In,` thisposition the lever `26 has the lug2.7' moved past the dead center ofthepivotal movement of the lever, and the spring 32, Which has vbeencompressed, tends to further move the lever and maintain the lever pastits dead center, thereby serving to hold the rim and ring in lockedposition. It Will be noted that the lever is suitably curved at 27 so asto iit around the adjacent spoke of the Wheel and be entirely positionedWithin the two sides of the wheel.

WVhen the lever is moved to the position shown in `Figures 2 and 4 thenut 31 will engage the lug 30 upon the ring and bring the lugs 23 inregistry with the recesses 15 so that the rim may be removed.

l/Vliile I have herein shown and a preferable form of my invention, Iwould have it understood that `changes m ay be made in the form,proportion and construction of the several parts without departingfromthe spirit of my invention and Within the scope of the appendedclaims.

I claim:

l.- In combination With a Wheel having a felly, a locking ring mountedfor oscillatory movement on one side of the felly, a plural.- ity ofperipheral recesses in said ring, a demounta-blerim, lugs on the bottomof said rim arranged to register with said recesses, said lugs beingprovided at their contacting edges with transverse and longitudinallyinclined faces adapted to contact with longitudinally inclined faces onsaid ring, and means on said felly for moving the recesses inl and outof registry With said lugs and for bringing into contact said faces.

2. In combination With a wheel having a felly, a locking ring mountedfor oscillatory movement on one side of the felly, a plurality `ofperipheralL recesses in said ring, a demountable rim, lugs on the bottomof said rim arranged to register with said recesses, said lugs beingprovided at their contacting edges with transverse and longitudinallyiuclined faces adapted to contact With longitudinally inclined' faces onsaid ring, and

means on said Wheel for moving said ring and causing a binding contactof the lugs vwith the inner Wall of the ring When the recesses are movedout of registry With respect to said lugs.

3. In combination With a Wheel having a felly, a rim retaining iiaugesecured to one described side of said felly, and a shiftable ringconnected to the opposite side thereof, a plurality of peripheralrecesses in said ring, a demountable rim provided with lugs adapted tobe arranged in or out of registry With said recesses, and a togglelocking lever attached to said Wheel for moving the ring with respect tothe felly and rim.

4. In combination With a Wheel having a` felly, a` rim retaining flangesecured to one with respect to the rim, said means comprising a leverfulcrumed at one end to the felly,

an upwardly extending lug on said ring, and

a link connected to said lug, and to said lever.

5. rIn combination with a Wheel having a felly, a rim retaining flangeand a shiftable ring secured at opposite sides of the felly,

a plurality of peripheral recesses in said ring,

a demountable rim, lugs on the bottom of said rim arranged to registerwith 'said recesses, a toggle locking means for oscillating the ringwith respect to the rim, said means comprising a lever4 fulcrumed at oneend to the felly, a stud on said lever, an upwardly extending-lug onsaid rim, and a link connecting the lever to said stud.

(5. In combination with a Wheel having a felly, a rim retaining flangeand a'shiftable ring secured at opposite sides of the felly, a pluralityof peripheral recesses insaid ring, a demountable rim, lugs on thebottom of said rim arranged to register with said recesses, a togglelocking means for oscillating the ring vvithrespect to the rim, saidmeans comprising a lever fulcrumed at one end to the felly, .a stud onsaid lever, an upwardly extending lug on said ring, a link connectingthe lever to said stud, and a resilient member adjustable mounted on theouter end of said link contacting with the lug for maintaining the leverin the locked position.

In testimony whereof I have hereunto set my hand. 1

JOHN WILLIAM AKARD.

